A flashlight can include a flashlight shaft, a grip overmolded on the flashlight shaft, and a light element connected to the flashlight shaft. The flashlight shaft can have a circumferential grip recess bounded by two raised portions. The grip recess can have a surface lower than the two raised portions around a circumference of the shaft. The shaft can be integrally formed as a single piece. The grip can be overmolded into the grip recess, such that the grip covers the surface of the grip recess and is bounded by the two raised portions. The grip can be formed of a material that is insufficiently flexible to pass over the two raised portions without damage.

A molded fluid coupler defines a continuous external surface and an internal bore extending from a proximal end to a distal end. The molded fluid coupler has an external conduit barb positioned adjacent the proximal end, and a piston positioned adjacent the distal end. The molded fluid coupler also has a proximal rib positioned distally of the conduit barb and a distal rib distally spaced from the proximal rib to define an annular gap positioned between the proximal rib and the distal rib. The piston extends distally of the distal rib and defines an external sealing surface lacking a parting line. In some embodiments, an external surface extending between the proximal end and the barb lacks a parting line.

A mold for injection molding, the mold including two or more cavity rows, each cavity row having a plurality of cavities, and a cooling flow path, the cooling flow path including: at least one supply port, a distribution conduit, a supply conduit, a cavity cooling portion, a discharge conduit, a collecting conduit, and at least one discharge port. The supply conduit and the discharge conduit are parallel to the cavity rows, and at least one supply conduit and at least one discharge conduit are provided for each cavity row. The distribution conduit and the collecting conduit have larger diameters than the supply conduit and discharge conduit. The distribution conduit and the collecting conduit are arranged below the supply conduit and the discharge conduit such that the distribution conduit and the collecting conduit are provided at different heights from the supply conduit and the discharge conduit.

An injection mold for a high-aspect-ratio double-layer cylindrical plastic part and a molding method using the same. The injection mold includes a support base plate. A movable mold fixing frame and a movable mold base plate are arranged at the middle of a lower surface of the support base plate through positioning screws. A lower core mold is matchingly provided at a center of an upper surface of the support base plate, and is provided with a lower semicircular cavity for accommodating an outer die barrel. One side of the lower semicircular cavity is open, and the other side is provided with a first end wall which is provided with a lower semicircular notch for an inner die rod to pass through. An upper surface of the lower core mold is provided with a positioning protrusion, a lower feeding groove, and a remaining groove.

A mold for manufacturing a faucet body is disclosed, including: a lower mold base; and an upper mold base forming a mold cavity. A first and second core-pulling mechanisms are slidably arranged at two ends of the lower mold base respectively, the first core-pulling mechanism is provided with a first mold core set including a valve seat mounting groove mold core, a water outlet channel mold core and a water inlet channel mold core. The valve seat mounting groove mold core and the water outlet channel mold core are fixedly arranged on one side of the first core-pulling mechanism facing the mold cavity, the water inlet channel mold core is connected with a rotating block, the other end of the rotating block is rotatably arranged on the first core-pulling mechanism. The second core-pulling mechanism is provided with a second mold core set.

The invention provides a mould core and injection moulding apparatus for the production of a preform using a mould core which in the zone for defining the neck part of the preform comprises a combination of a raised portion and a shallow groove with a depth of 0.01 to 1 mm provided in the raised portion, for defining an internal attachment means in the neck of the preform. The invention also provides a preform and a container made from the preform, with internal attachment means in the neck. The internal attachment means is carried out rotation symmetrically with respect to the longitudinal axis of the preform. The combinations with an insert piece, preferably a pouring spout, flexible hose or dosing cap, have also been described. Furthermore, the invention provides an injection moulding method for the preform production and a stretch blow moulding method for the container production.

A catheter includes an elongated shaft extending in a longitudinal direction and possessing an outer surface, the shaft possessing a distal end, a proximal end and a proximal portion which includes the proximal end, a transverse direction being perpendicular to the longitudinal direction, the elongated shaft being an elongated tubular body having a lumen formed therein, and a tubular hub fixed by insert molding to the outer surface of the shaft along the proximal portion of the shaft. The hub possesses a residual stress at one predetermined location of the hub that exceeds the residual stress of the hub at each of: (i) a first position distal to the one predetermined location, (ii) a second position proximal to the one predetermined location, and (iii) a third position being at the one predetermined location in the longitudinal direction and spaced apart from the one predetermined location in the transverse direction.

An injection mold (100) including a core plate assembly (200), a cavity plate assembly (400) and a stripper plate assembly (300) arranged between the core and cavity plate assemblies (200, 400). The mold (100) includes a plurality of mold stacks (MS) with a molding configuration, in which the mold stacks (MS) are closed to define molding cavities. A gap (G) is provided between the core plate (210) and the stripper plate (310) when the mold (100) is in the molding configuration, such that a clamping load (CL) applied to urge the core plate (210) toward the cavity plate (410) is directed substantially entirely through the mold stacks (MS).

A stator for use in a positive displacement motor or a progressing cavity pump. The stator comprises an elastomer mix preferably including rubber and a fiber reinforcement. The fiber reinforcement includes a plurality of fibers. The elastomer mix is formed into a stator via an injection molding process. The injection molding process includes a shear flow step in which shear flow is induced in the elastomer mix while the elastomer mix is in an uncured state. The shear flow modifies the orientation of the fibers into an advantageous modified fiber orientation. Shear flow is induced preferably via differential rotation of injection mold assembly elements during the injection molding process. Methods of manufacturing the stator are also disclosed.

The disclosure relates to a method of manufacturing a component composed of a thermoplastic having at least one hollow space in the interior for a two-wheeler by means of plastic injection molding, said method comprising the following steps: closing the configured injection molding tool; injecting a plasticized thermoplastic melt into the closed injection molding tool; injecting at least one fluid into the closed injection molding tool to displace the plastic core from the interior of the component; and opening the injection molding tool and demolding the component. wherein the component is a handlebar.